I am happy to announce that we have made Spatial Statistical Data Analysis for GIS Users available as a free download. This is a PDF textbook written by Konstantin Krivoruchko, one of the founding members of Geostatistical Analyst.
This textbook was previously available through Esri Press: "This book presents a practical introduction and guide to spatial statistics for researchers, statisticians, academics, and college students who want to expand their knowledge and skills in geographic information system (GIS) technology to new areas of analysis. More than 1,000 full-color illustrations are included, along with lessons and sample data to help organize courses and lectures."
Download link for the PDF book: http://downloads.esri.com/esripress/pdfs/spatial-statistical-data-analysis-for-gis-users.pdf
Download link for datasets used in the book: http://downloads.esri.com/esripress/pdfs/spatial-statistical-data-analysis-for-gis-users.zip
-The Geostatistical Analyst team